JPH035186A - Ink-jet recording device and copier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a copying machine and an ink sheet recording device, and more specifically, to a copying machine equipped with a so-called manual paper feeding mechanism and an ink sheet used in a copying machine. It relates to a recording device.

[Prior Art] An inkjet recording device has various advantages such as being able to perform high-speed, high-definition recording with low noise, and being suitable for recording relatively large-sized images.

For this reason, they are being used in a wide variety of machines equipped with recording devices.

Such machines are equipped with some kind of paper feeding mechanism for feeding (hereinafter also referred to as paper feeding) the recording medium (hereinafter also referred to as recording paper), and in particular machines such as copying machines are equipped with It is equipped with a paper feeding mechanism for feeding recording paper of various sizes so as to feed the recording paper according to the size of the document.

For copying machines, the example is generally A4. 83. ...
(Multiple types of recording paper according to the specified recording paper size)
. . . , and a so-called manual paper feeder 4fli capable of feeding recording paper of a specified size.

In such cases, when paper is fed from a cassette, it is important to determine whether the size of the recording paper is detected when it is loaded into the cassette or the cellar, and it is important to determine the appropriate size based on the detected recording paper size. Recording control is performed. Furthermore, in the case of manual paper feeding, the paper cut size is not detected, and therefore, recording control is not performed according to the paper size.

[Invention or problem to be solved] However, if the size of the recording paper that is manually fed is inappropriate for the size of the document, for example, if the size of the recording paper or the size of the document is smaller than the size of the document, the recording A portion of the original image is recorded on paper.

In such a case, for example, in a copying machine using a structure such as a photosensitive tram as a recording device, there is no real harm other than obtaining a result in which part of the original image is omitted.

On the other hand, when an inkjet recording device is used as a recording device, ink is ejected based on the data read from the document, so if the recording paper is small, ink is also ejected to areas outside the recording paper υ. There are problems such as the ink may be ejected, and the ink may get into the device or the recording paper that will be fed next and become dirty, or the ink may have an adverse effect on the electrical parts.

The present invention has been made to solve the two problems, and is used in a copying machine equipped with a manual paper feeding mechanism and an ink sheet recording device used in a copying machine, in which recording paper is manually fed. It is an object of the present invention to provide a copying machine, an ink sheet recording device, and a copying machine, which are equipped with a means for detecting the size of the ink, and can thereby set ejection ports capable of ejecting ink in recording according to the detected size. purpose.

[Means for solving the problem] To this end, the invention provides a feeding mechanism capable of feeding a recording medium of any size, and a method of ejecting ink onto the recording medium fed by the feeding mechanism. When feeding the recording head for recording and the recording medium,
Size detection means for detecting the size of the recording medium;
The present invention is characterized by comprising ejection range setting means for setting a range within which ink can be ejected from the recording head according to the size detected by the size detection means.

[Function] According to the above configuration, in the so-called manual feeding mechanism capable of feeding a recording medium of any size, by providing a means for detecting the size of the recording paper to be fed, Depending on the detected size, it is possible to set the range in which ink can be ejected by the recording head.

[Embodiments C to F] Examples of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic side sectional view of a copying machine according to an embodiment of the present invention. In the figure, 101 is a device that uses a known reader to read a placed original and convert it into an electrical signal. The scanner section 102 is a printer section that performs recording based on the electrical signal from the scanner section +01.

The printer unit 102 is mainly composed of the following elements.

That is, a paper feed cassette 103 stores recording papers of a specified size in a stacked manner. Based on the paper feed command, the recording paper in the paper feed cassette 103 is moved to the pickup roller 1.
A sheet feeding mechanism such as 03A feeds a predetermined recording sheet to one general feeding path. Furthermore, when the cassette yb 103 is installed in the copying machine, the size of the recording paper stored therein is detected via a predetermined sensor or the like.

Recording paper 6:ll fed from cassette 1103, recording paper 1-roller 104. It is transported to a predetermined recording station by the transport section 105.

106 is a part of the recording spatula 1, and there are four records.
106AI06B Each of the ejection ports 106c and 106D is arranged to face the recording position. To these records, +o68 to 106D are scanner section +01
Recording is performed by ejecting ink onto the recording paper using a head drive signal based on the second electric signal from the recording paper.

The recording paper on which recording has been completed is discharged to the 1/1 paper tray 07 by the belt conveyance section 105 or the like.

108 is a manual paper feed section, and a recording paper mounting table 12
Chi 1-35. It is composed of a paper feed roller 108 and the like. The recording paper fed by the manual paper feed unit 108 is passed through a pair of registration rollers 1088 to two sets of registration rollers 10.
4, and thereafter is transported along the same route as described above to perform recording and ejection.

FIG. 2 is a schematic top view showing the details of the recording head shown in FIG. In the same figure, the type record head is 114
is an ejection port, and +13 is an ejection port surface on which a plurality of ejection ports 114 are arranged over a length greater than this width so that the maximum width of the recording paper can be recorded. Reference numeral 112 denotes a common liquid chamber that communicates with the ejection port 114 and supplies ink to each of the ink liquid paths in which an electrothermal converter (not shown) as an ejection energy generating means is disposed. It is.

111 is provided at both ends of the common liquid chamber 112, and the common liquid chamber 1
This is a circulation pipe used for supplying ink to 12 and for circulating ink as necessary.

FIG. 3 6J is a block diagram showing a 4,1ζ configuration according to an embodiment of the present invention. In the copying machine shown in FIG.
A configuration for setting ejection openings that can be ejected for printing 106A to 106D is shown.

In Figure 3, i5, 12 and 35 are a mounting stand and a kite, respectively, in a double series, and chis 1 to 35
is to regulate the paper feeding direction of the loaded recording paper.
ili! according to the width of the recording paper! The stand 12 is provided so as to be movable in the left and right direction.

Three types of sensors S are mounted on the mounting table 12 or the guy 1-35.
8 S9512 is installed. The sensor S8 is a sensor consisting of a pair of a light emitting element and a light receiving element.The light emitting element is constituted by an LED installed on the side of the kite 35 that contacts the recording paper, and the light receiving element is taken up by the kite 35 and guided by the guide 35. 414 is formed by a fiber transistor installed in the kite bar 35A that moves together with the kite bar 35A. sensor S9
electrically engages with a part of the kite bar 35A and
It is a variable resistor that changes its resistance value as the resistor 35 moves. The sensor 512 is provided at the leading edge of the recording paper in the paper feeding direction on the mounting table 12, and is connected to a photo ink printer,
It consists of an acticoator that blocks or forms an optical path by its movement. Note that an encoder may be used instead of the variable resistor that constitutes the sensor 9.

Sensor S8 is a sensor for detecting whether or not the recording paper is in contact with the kite 35, that is, whether or not the kite 35 has been moved appropriately to correspond to the width of the recording paper, and sensor S9 is a sensor for detecting whether or not the guide is in contact with the kite 35. This is a sensor for detecting the amount of movement of 35 and thereby detecting the width of the recording paper. Also,
The sensor 512 is a sensor for detecting whether recording paper has been inserted for paper feeding. When recording paper is inserted, the actuator that presses the recording paper rotates around a predetermined axis and presses the paper. A part of the acticoter that was blocking the optical path of the l.incrector is evacuated from that position to form an optical path.

Detection signals from each of the sensors described above are input to a control unit 40 provided in the copying machine. The control unit 40 has the following elements and performs control according to the detection signals and the like.

That is, 41 is a recording paper control section that manually inputs the signal from sensor S12, 42 is a width adjustment detection section that manually inputs the signal from sensor S8, and 43 is a recording paper width detection section that manually inputs the signal from sensor S9. .

Reference numeral 45 denotes a guide operation state determination section, which inputs signals from the detection sections 41 and 42 and a signal from the copy key K that commands a copy operation, and when a copy operation is commanded, chi1~; ) 5) It is determined whether or not the recording paper is in the correct position corresponding to the recording paper, and whether or not a paralytic recording paper is inserted. Guy in this judgment)・
35 is not in the correct position, a signal indicating that a display is to be performed is output to an alarm 36, and the transfer of the recording paper width information by the manual section 16 is prohibited, as will be described later.

Reference numeral 46 denotes a human power section, which transfers recording paper width information from the recording paper width detection section 43 to a control section 47, which will be described later, based on a control signal from the determination section/15. '' As described above, this information is transferred only when the transfer of the recording paper width information is not prohibited by the determination unit 45.

Reference numeral 47 denotes a recording orifice control section, which has an actual recording orifice setting section 50 and a recording prohibition section 51, and sets the actual recording orifices based on the recording paper width information.

That is, the actual recording ejection orifice setting unit 50 obtains the recording paper width information and sets the information corresponding to the corresponding ejection orifice of the head driver IID to prevent ink from being ejected from the ejection orifice outside the ejection orifice corresponding to the recording paper width. The drive data number 48, which is always ``0'' from 1 to ``0'', is output.

1 As a result, whether the data read by the scanner 101 or this data is "1" regarding the ejection port that prohibits ink ejection.
'', no ink will be ejected.

Further, the recording prohibition unit 51 outputs a signal to cause the alarm 36 to display if there is a risk that ink may be ejected onto a surface other than the recording paper, such as in the case of GJ paper or a size that cannot be transported.

FIG. 4 is a flowchart showing a series of operations related to recording in the copying machine configured as described above.

First, in step 5401, it is determined whether or not manual feeding is being carried out based on a predetermined signal outputted in conjunction with an operation, such as when setting a tray for manual feeding. In the case of an affirmative judgment, steps 5402 and 5403 wait for manual insertion of recording paper and "ON" of the copy key, respectively, and when both of these are performed, step 5404 is performed and the controller is activated based on the output of sensor S8.]・35 It is analyzed to see if it is in the correct position according to the recording paper.

2 If the determination is affirmative, proceed to step 5405, and sensor S9
Obtain recording paper width information based on the output. If the determination is negative, the alarm 36 is displayed in step 3408, and the process waits for the guide 35 to be moved to the correct position in step 5409. When one of the guys 1 to 35 is moved to the correct position, the display of the alarm 36 is canceled in step 5410, and the process proceeds to step 5405.

Next, in step 5406, actual recording ejection ports are set, and in step 5407, some recording operations are performed, that is, paper feeding, recording, and paper ejection, and the operation ends.

If it is determined in step 5401 that the manual feed mode is not activated, then in step 5411 it is determined whether or not there is recording paper in the paper feed cassette, and if there is no recording paper, an alarm is issued in step 5412. While displaying the information, the program waits for recording paper to be loaded into the cassette in step 5413, and when the recording paper is set, the alarm display is canceled in step 5411 and the process proceeds to step 5415.

In step 5411, when it is not determined that there is recording paper in the cassette 1-, the process directly advances to step 5415 and waits for the coffee key K to be turned on.

If the cohesive key is turned on, step 5416
For example, information on the width of the recording paper to be fed is obtained based on the state of the cassette l~, and the process advances to step 5406.

FIG. 5 is a schematic perspective view showing another embodiment of the mounting table and chisel 1. The configuration shown in the figure corresponds to the case of paper feeding based on the center, and two movable guides 35 are provided on the mounting table 12, thereby regulating paper feeding based on the center.

Corresponding to the second configuration, a sensor 510 and Sll similar to the sensor S8 described above are installed in two guides 1-25, respectively.
In addition to these, a kite bar 358 is provided.

FIG. 6 shows a modification of the embodiment shown in FIG. 5, in which a sensor SJ3 is provided in addition to the sensor 512 as a sensor for detecting whether recording paper is inserted.

The sensor 513 is a reflection type sensor, and by sharing it with the sensor S12, for example, when both the sensors 512 and 5+3 are turned on, it is possible to insert a standard recording paper by hand as in the above embodiment. sensor S
Based on the recording paper width information according to 9.<I: The above-mentioned actual recording ejection orifice setting is performed.

On the other hand, if the sensor 512 is "ON", if the sensor 513 is "O"
In the case of "FF", it is determined that the old It" sheet of the specified size has been inserted, and the actual recording ejection opening is set in the same manner as described above, assuming that the width of the recording paper is a predetermined width of 84.

FIG. 7 shows flowcharts 1 to 7 of the recording operation performed in the copying machine based on such a configuration.

In this process, after the recording paper is detected by the sensor S12 in step 5702, the recording paper J: is detected by the sensor 513. Here, if the sensor s13 is "OFF", in step 5712 the copy key K is
If it is turned ON, the recording paper width is determined to be A4 of the 011P sheet in step 5713, and the process advances to step 5707. Processes other than those described above are the same as those described with reference to FIG. 4, so their description will be omitted.

5 The configuration for obtaining recording paper width information is not limited to each of the above-mentioned embodiments.
For example, it is also possible to obtain the width information by a CCD sensor array without using Chi1~.

Furthermore, although the so-called full-margin type recording head has been described in the above embodiment, the application of the present invention is not limited to this, and a serial type recording head may also be used, and in this case, the actual recording ejection port settings Instead, it is preferable to set the range in which the recording spatula moves during recording according to the width of the recording paper.

In addition, by obtaining the width information of the recording paper that is manually fed,
Based on this information and the document size information that can be obtained by the scanner unit 101, it is also possible to record the document image onto the recording paper at the highest magnification.

[Effects of the Invention] As is clear from the above description, according to the present invention, the size of the recording paper to be fed can be detected in a so-called manual paper feeding mechanism capable of feeding recording paper of any size. By providing means for this purpose, it becomes possible to set the range in which ink can be ejected by the recording head according to the detected size.

As a result, ink is prevented from being ejected onto surfaces other than the recording paper.
It is effective in preventing ink leaks inside the device and stains on the back of the recording paper.

[Brief explanation of drawings]

FIG. 1 is a schematic side sectional view of a copying machine according to an embodiment of the present invention, FIG. 2 is a schematic top view of an ink sheet recording spatula according to an embodiment of the present invention, and FIG. , a block diagram showing the configuration of the copying machine shown in FIG. 1, FIG. 4 is a flowchart of the recording operation based on the configuration shown in FIG. 3, and FIGS. FIG. 7 is a schematic perspective view showing another embodiment of the support stand and guide 1 to each scale sensor attached thereto. FIG. 7 is a flowchart showing another embodiment of the recording operation. 10... Scanner section, 102... Printer section, +03... Cassette, 104... Registration roller, 105... Bell 1-1 general feed section, 106... Recording head, 107...・Discharge source tray, 108...Manual paper feed section, III...Circulation tube, 112...Common liquid chamber, 113...Discharge port surface, 114...Discharge port, 12...Manual feed Recording paper mounting table, 35... Width shifting guide, 36... Alarm, 40... Control unit 1-5 9 41... Recording paper detection section, 42... Width shifting detection section, 43... Recording paper width Detection unit, 45...Ki-l-operation state determination unit, 46...Input unit operation status, state determination 815° 47...Recording ejection [] control unit, 50...Actual recording ejection [] setting unit, 51...Recording prohibition section, S8,510. Sll...Kai 1 Hesensa, S9...
- Recording paper width detection sensor, SL2...Detection of presence or absence of manual feed paper, 513...Detection of 011P paper for manual feed. 0

Claims (1)

[Scope of Claims] 1) A feeding mechanism capable of feeding a recording medium of any size, and recording by ejecting ink onto the recording medium fed by the feeding mechanism. a recording head; a size detection means for detecting the size of the recording medium when the recording medium is fed; and the recording head ejects ink according to the size detected by the size detection means. 1. An inkjet recording apparatus comprising: an ejection range setting means for setting a range in which ejection is possible. 2) A copying machine configured using the inkjet recording device according to claim 1. 3) The size detection means includes a recording medium mounting table that constitutes the paper feeding mechanism, a guide provided on the mounting table and movable according to the size of the recording medium, and a sensor that detects the operation of the guide. 3. The inkjet recording apparatus or copying machine according to claim 1, wherein the size of the recording medium is detected based on the amount of movement of the guide detected by the sensor.